CYC APT 750c Display

The trike has been electrified with a Bafang BBS02 motor paired with a 48V Golden Motor Shark Pack battery. This motor features cadence sensing and offers nine pedal assist levels. This allows the rider to gain exercise while receiving motor assistance. Pedaling activates the motor to provide assistance, which can extend ride duration and reduce rider fatigue. A full throttle option is also available for motor power without pedaling.

The BBS02 kit includes the motor and controller, a C965 display (also known as the 800S), inner and outer lockrings, a motor mount to secure the motor, a thumb throttle (with options for twist throttles available), crank arms and crank bolts, a speed sensor, a stock chainring with a chainring cover, a wiring harness, and electric brakes (E-brakes).

Installation begins by removing the front derailleur, chainring, and bottom bracket. A crank extraction tool facilitates crank removal. This specific bike uses a cup and cone bottom bracket, which requires a particular removal method. A video link for removing cup and cone bottom brackets is provided. For standard bottom brackets, a different tool is usually used.

Once all components are removed, the motor is prepared for installation, ensuring that the brake cable is not pinched. The motor mounting plate is attached to the motor, with the teeth side facing inward toward the bike frame. The screws included in the kit fit a 68mm bottom bracket; for a 73mm bottom bracket, a specific 73mm screw set is recommended for proper installation.

Inner and outer lockrings are installed on the bottom bracket. The motor is positioned with maximum clearance from the ground. The chainring installation can use either the stock chainring or a Lekkie Bling Ring, which provides better offset to address chainline issues and features a narrow-wide tooth pattern to prevent chain drops. The chainring cover is then secured with the provided screws.

Next, the wiring harnesses are described. The battery connection, light hookup, speed sensor plug, shift sensor plug, and the main wiring harness are all detailed. Correct alignment of plug arrows is emphasized to avoid damage.

The stock mechanical brakes are removed and replaced with electric brakes (E-brakes). Brake cables are carefully routed into the new E-brakes. Installation of one side is demonstrated; the other side follows the same process.

The C965 display, with an accompanying pin pad, is installed on the handlebar. Rubber mounts are used to accommodate different handlebar thicknesses. The display is centered, and the pin pad is installed on the handlebar where it can be accessed easily. The pin pad allows adjustment of pedal assist levels without removing hands from the handlebars.

The throttle is mounted next to the pin pad and secured with the supplied screw. The positioning enables comfortable control of pedal assist and throttle.

All peripherals are connected to the motor controller wiring harness. The electric brakes use female three-pin plugs that connect to male plugs on the wiring harness. The display’s green plug and throttle’s three-pin plug are similarly connected with attention to arrow alignment to ensure proper connections.

The 48V 14.5Ah Shark Pack battery is mounted. If existing bottle cage bolts are present on the down tube, they can be reused to mount the battery cradle. Otherwise, a Triple Bob bracket is used to create mounting holes on the down tube. Hose clamps and screws secure the cradle firmly.

The speed sensor is installed on the chainstay with the sensor side facing the wheel spokes where the magnet will be attached. The sensor height is adjusted using a screw to position it as close as possible to the magnet without contact. Zip ties supplied with the kit secure the sensor to the frame.

The magnet is attached to a spoke and tightened with a flathead screwdriver once properly aligned with the sensor.

Finally, all wiring is neatly organized using zip ties and protective sleeves to prevent interference with moving parts such as pedals and the chainring. Unused wires are sealed to prevent water ingress.

This setup provides the customer with a versatile electric trike that allows extended riding and functional use, such as commuting or errands. The motor assistance is smooth, providing help based on pedal effort while still enabling exercise.